Radiation imagery chemistry: process – composition – or product th – Stripping process or element – Forming nonplanar image
Patent
1982-09-02
1983-08-30
Downey, Mary F.
Radiation imagery chemistry: process, composition, or product th
Stripping process or element
Forming nonplanar image
430260, 430309, 430329, 430331, 134 38, 252153, 252171, 252364, 252542, 252549, 252DIG4, G03C 500, B08B 700, B01F 100, C09D 900
Patent
active
044017472
ABSTRACT:
Stripping compositions for removing resist materials from substrates comprise compositions of a 2-pyrrolidinone compound and a dialkyl sulfone compound. Either or both of polyethylene glycol and a diethylene glycol monoalkyl ether may be added to provide even more effective stripping compositions.
REFERENCES:
patent: 2891849 (1959-06-01), Whitbourne
patent: 3607271 (1971-09-01), Hilhorst et al.
patent: 3673099 (1972-06-01), Corby et al.
patent: 4055515 (1977-10-01), Kirch
patent: 4276186 (1981-06-01), Bakos et al.
patent: 4304681 (1981-12-01), Martin et al.
Hallquist Lisa G.
Hurley Thomas J.
Ward, Jr. Irl E.
Downey Mary F.
J. T. Baker Chemical Company
Rauchfuss, Jr. George W.
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